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jQuery Prevent Multiple Form Submit

By Sam Deering

JavaScript

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It might be useful on some forms to prevent multiple submits on a form by accident. This code binds the submit event and stores disabledOnSubmit” data so next time the event “submit” fires it will return false. All submit buttons are also disabled so the form cannot be submitted twice.

$(document).ready(function() {
  $('form').submit(function() {
    if(typeof jQuery.data(this, "disabledOnSubmit") == 'undefined') {
      jQuery.data(this, "disabledOnSubmit", { submited: true });
      $('input[type=submit], input[type=button]', this).each(function() {
        $(this).attr("disabled", "disabled");
      });
      return true;
    }
    else
    {
      return false;
    }
  });
});

Sam Deering has 15+ years of programming and website development experience. He was a website consultant at Console, ABC News, Flight Centre, Sapient Nitro, and the QLD Government and runs a tech blog with over 1 million views per month. Currently, Sam is the Founder of Crypto News, Australia.

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